| 曾 凤，郭子娟，李 雯.赤霉素对台农芒果保鲜效果的研究[J].广东农业科学,2016,43(5):112-117 |
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赤霉素对台农芒果保鲜效果的研究 |
| Effect of gibberellin （GA） on preservation quality of Tainong mango fruits |
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| DOI：10.16768/j.issn.1004-874X.2016.05.022 |
| 中文关键词: 赤霉素 芒果 贮藏品质 采后生理 |
| 英文关键词: GA mango storage quality postharvest physiology |
| 基金项目:农业部热作农技推广与体系建设项目（14RZNJ-57）；海南省重大科技项目（ZDZX-2013011）；农业部芒果行业科技专项（201203092-02） |
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| 摘要点击次数: 1642 |
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| 中文摘要: |
| 以10 年生台农芒果树为试验材料，研究了采前喷施不同浓度（0.3、0.5、1.0、2.0、3.0 g/L）赤霉
素（GA）对采后芒果贮藏品质和采后生理的影响。结果表明：与空白对照相比，几种浓度的GA 处理都能够延缓叶绿素的降解和类胡萝卜素及花青素积累，其中2.0 g/L 处理效果最显著；GA 处理能够延缓果实病害发生，与对照相比，贮藏30 d，0.5 g/L 处理可降低病情指数19.44%，处理间差异显著；GA 处理能够延缓总可溶性固形物（TSS）含量的变化；减少维生素C（Vc）的损失；保持果实较高的硬度及可滴定酸（TA）含量；GA处理能抑制丙二醛（MDA）的积累，以2.0 g/L 处理效果最好，贮藏36 d，CK、0.3、0.5、1.0、2.0、3.0 g/L 处理果实的MDA 含量分别为45.454、40.103、37.884、34.462、27.045、39.174 nmol/g，处理间差异显著。综合外观品质和内在品质，2.0 g/L GA 处理保鲜效果最好。 |
| 英文摘要: |
| Taking trees of 10 years old‘ Tainong ’ mango as the experiment materials，the effects of pre-harvest spraying treatment with gibberellic（ GA） at different concentrations of 0.3，0.5，1.0，2.0 and 3.0 g/L on the storage quality and post-harvest physiology of fruits were researched. The results showed that，compared with control fruits，GA treatment could delay the degradation of chlorophyll and the accumulation of carotenoid and anthocyanin with the best concentration of 2.0 g/L ；GA treatment could decrease disease of fruits compared with the control，0.5 g/L treatment could reduce disease index to 19.44% on 30 storage day and there were significant differences among treatments（P<0.05）；GA treatment could delay the change of TSS content，reduce the loss of Vc and maintain a high hardness and TA content ；GA treatment also could inhibit the accumulation of malondialdehyde（ MDA），2.0 g/L treatment was the best；after storage at 36 day，MDA contents of CK，0.3，0.5，1.0，2.0 and 3.0g/L treatment were 45.454，40.103，37.884，34.462，27.045 and 39.174 nmol/g respectively and there were significant differences treatments（P<0.05）.Considering with appearance and internal quality，2.0 g/L GA had the best effect. |
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